US484566A - Thill-coupling - Google Patents

Description

(No Model.)

P. BROADB'OOKS. THILL-OUPL1NG.

No. 484,566. Patented Oct. 18, 1892.

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UNITED STATES PATENT Ormes.

PETER BROADBOOKS, OF BATAVIA, NE7 YORK.

THI'LL-COUPLING.

SPECIFICATION forming part of Letters Patent No. 484,566, dated October 18, 1892.

Application tiled January 20, 1892. Serial No. 418,637. (No model.)

To all whom, t may concern,.-

Be it known thatI, PETER BRoADBooKs, a citizen of the United States, residing at- Batavia, in the county of Genesee and'State ot' New York, have invented certain new and useful Improvements in Thill-Couplings, of which the following is a specification.

My invention relates to certain improvements in thill-couplings whereby a longer bearing is provided, the coupling-joint is not sol liable to be lled with dust, and consequently will wear a long time Without getting loose and rattling, and whereby other advantages are obtained, all of which will be fully and clearly hereinafter described and claimed, reference being had to the accompanying drawings, in which- Figure lis a side elevation of the coupling complete. Fig. 2 is a top View. Fig. 2A is a detached side elevation ct the shaft iron. Fig. 3 is a cross-section in or about line a a, Fig. 2, cutting through the draw-clip and shaft-iron only, showing a slight modification of the device, the bearing-sleeve being omitted. Fig.tisasimilarsectioncuttingthrough the draw-clip, the shaft-iron, and the sleeve. Fig. 5 is a sectional elevation showing a modiication of the shaft-iron, the section being a longitudinal section through a portion of the draw-iron, cutting, also, through the drawbolt and showing an end view of the sleeve through which the draw-bolt passes.

Referring to the drawings, the draw-clip 1 is provided with the well-known nuts 2 and screw portion 3, by which it is secured to the axle. On the upper inner side of the clip I form a narrow ridge 4. (shown in Fig. 1 and by dotted lines in Fig. 2) to keep the clip from sliding upon the axle-bed. It is preferably formed in one piece with the clip. At one side of the clip are the usual projecting portions or clip-ears 5, between which the shaft-iron 6 is secured, each of which is provided with a hole 7, (see Figs. 2, 3, and 4.; shown by dotted lines in Fig. 2,) and each directly in line with the other and of the same size as the hole 7a in the draw-iron 6. (See Fig. 2^.)

The shaft-iron 6 is constructed, preferably, in one piece, substantially as shown in Fig. 2A; but it may be made in two parts, as shown in Figs. l and 5. Itis provided with a screw bolt and nut 8 8u for the purpose of drawing it tightly together, and thereby rigidly clasp and hold the sleeve or tubular journal 9 so that it cannot turn or move within it. It de# sired, there may be more than one boltfor rigidly holding the tubular journal 9. (See Figs. 1, 2, and 5, where a second hole is shown at 10 to receive another bolt, the lower portion 11 of the shaft-iron being made longer to receive it.)

12 in Fig. 4 represents the bolt that passes through the tubular'journal. It is provided with a head 13,havinga reduced portion 13a, adapted to fit tightly in the holes 7, (see Fig. 4,) so as to exclude the dust from passing in that Way. At the opposite end of the bolt 12 is the usual screw portion 14 and a screw-nut l5, provided witha reduced portion 16,adapted to fit tightly in the opposite hole 7 and rigidly connect the bolt with the clip-ears, making it stationarytherewith. This coupling is put together by putting the shaft-iron in place, so that the holes 7 and 7:t will be in line. Then the sleeve or tubular journal is put in and the bolt 12 is passed through the sleeve and secured bythe nuts 13 and 15, above mentioned. The draw-iron is then secured rigidly to the tubular journal 9 by means ot' the screw bolt and nut 8 8% It will be noticed that the tubular journal 9 is long enough to project into the holes 7, so that its ends rest against the reduced portions 13L and 16, and is fitted closely but so as to turn easily therein and on the bolt 12, while at the same time it is rigidly held to and made stationary With the draw-iron, so as to be turned by it. From this construction it will be seen that an unusually-long bearing is provided for, as the ends of the tubular bearing project into the clip-ears 5 until they rest against the reduced portions 13 and 16, as herein before mentioned, so that the wearin gsurface extends nearly the whole length of the bolt 12, upon which the tubularbearing turns, as it is rigidly secured to the shaft-iron, so as to turn or move with it. This construction also keeps the bolt 12 free from dust or dirt, so that it will wear a long time without getting loose or rattling. Furthermore, all lateral play of the shaft-iron is avoided. I not IOO only give alonger bearing, but the tube may be made of hardened metal, thereby giving the greatest amount of bearing and wearing surface upon the bolt, which is so essential in providing a strong, safe, and durable thillcoupling. l

In the modification (see Fig. 5) Ihave made the shaft-iron parts 6 and 1l separate at the ends 17, so as to be in two parts. One advantage of this construction is that the bolt 12 may be slipped into the heads 18 and 18a and riveted, substantially as shown in Fig. 3. By this construction the draw-iron is made easily removable by removing the nut 8; but I do not think it would clamp and hold the tubular bearing as rigidly to the draw-iron as the clamping end 20 or the construction shown in Fig. 2A would, although it answers the purpose very well.

l. Inathill-coupling, the combination,with a draw-clip provided with ears having openings directly opposite and in aline w1th each other, of a tubular journal having its ends extend into said openings, a bolt adapted topass through the tubular journal, provided with a head havinga reduced portion adapted. to fit closely in the outer side of the opening 1n the clip-ear and a nut at its opposite end having a reduced portion adapted to tit tightly 1n the outer side ot the opposite clip-ear, so as to rigidly connect the bolt with the clip-ears and closely in close the tubular bearing, and a means, substantially as above described, for rigidly securing the shaft-iron to the tubular bearing, whereby a long dust-proof bearing 1s secured on the bolt, for the purposes described.

2. In a thill-coupling, thecombinatiomwith' a draw-clip, of a tubular bearing having its ends extend into the opening in the clip-ears, a shaft-iron rigidly and immovably secured between the clipears to the tubular bearing, a bolt adapted to pass through the tubular bearing, and a means, substantially as above described, for securing the ends of ,the bolt to the clip-ears, for the purposes described.

PETER BROADBOOKS.

Witn esses:

J. M. CALDWELL, JAMES SANGsTER.

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